How to Disable the TouchscreenEdit
There are those who find the touchscreen an annoying gimmick. Here's a method (originally posted to the Microsoft Community by MagicalPower255 on 10 November 2012) reprinted here verbatim: I needed to disable my touch screen on Windows 8 because my touch screen is defective. This computer is an old Win7 tablet that I bought refurbished so the quality was questionable.
I was able to disable the touch screen by doing the following:
1. Right-click and select "All Apps" at the lower right corner, then select Control Panel
2. Select Hardware and Sound
3. Select Device Manager
4. Select Human Interface Devices
5. From the list, look for the driver for the touch screen. This can be tricky since on my tablet they are all listed as "USB Input Device" and there are 3 of them. I found it by disabling and re-enabling one at a time until the touch screen stopped responding. You can also identify the touch screen by checking the Properties | Details and get the "Hardware Ids" then do a search online to see what the device is. In my case, the touch screen has the ID USB/VID_0EEF&PID_7302.
6. Once you know which is the touch screen, disable the driver and the touch screen should no longer work
Enable this device to make the touch screen work again.